Fastener-setting machine



March 2 1926. 1,575,596

F. E. WARNER A FASTENER SETTING MACHINE Filed April 22', 1924 2 Sheets-Sheet 2 Patented Mar. 2, 1926.

FlAN'K E- .WABllT-EB., 0F WATEBEPWL @Crimea-gelle,ASSlGNOn roseo-runt MNU- FACTURE; .centraux oF werngemygell ,T IGU'QI", QQEPQBATION `0J? CON- resuena-,Semin Mamme.

' Application leg April 22, `1924. Serial No. 708,255.

10 all whom t may'concem:

Be it known that I, FRANK E. IVARNER, aI `citizen of the United States, 'residing at IVatei'bury', in the county of New'IrIaven' and State of Coniiecticut,have ini'f'ent'ed 'a certain new aiidiseful Improvement lin lF astenerfetting' Machines, "of `which theffollowing is a full, clear, and exact ldescription. j 'This invention relatesto fastener sett-ing machines, and is in the nature lof an'inz'iprovenient `on maohines of thetype shown and Vdescribed in the' patent of "Frederick Stanley, No. 1,182594, 'granted May 9,

The object ,of the invention `is to provide means for controlling,I `and performing the feed vof fasten-er parts tothe setting* anvil of the machine, whereby great accuracy is 2 yattained and failure of thcfastener vfeeding Hlllenem illstcelly enillfedi The 'invention consists in a. fastener ab taching machine comprising essentially a setting anvil, a setting plunger mounted' for ,reciprocation relativelv to the lanvil,

'means for feeding and positioning fastener parts .in yoperative position with relation ,to said' plunger, and means for feedingi Y tener .parts/t0 ,the Settling @DWL lllludms e nraceway, a chute arranged .to receive'fas- .teller parts yfrom a suitable hopper ior other appropriatesource and to 'deliver such parts to the raceway, aV detent in colopl erative relationwithrespect ',to the diselia-,nge end oftlie lchute aii'd'adapted `to per inif one fastener part at a 'time to Lbe v,djeliyfered from, said chute to theraceway, means ,cooperating with theraceway' andard'ap-ted ,to advance fast-enerparts' discharged 1thereto `from said ichute into setting on the anvil, ineaps for impar ing .reciproca l,tion to `the plunger, aiidineans for liirilniiiting appropriate movements Vto the fastener `part advancing means in tuned relation to the reoiprocation ofthe plunger, 'as I ywill,

.proceed `now to yexplain .and fifiijally laimf In the accompanying drawings l,illustrating `the invention, in` .the seyeral figu'ji'es'of which like parts are v sim-ilafrly ,desif ated, Figure l isa .sidev elevation fofa" embodying my '.regent-io,1i, arts thelso 'the ing broken away to lmore ,clle'arly'sholw the v is sectionaloperating mechanism.

elan-teler-aibeteetelly iin .1e--

position upn 2 2, Fig. l, parts beingfomitted in the in tei'est tof 'clearness Fig. 3 is a' sectional plan of the raceway, ydetent and push .finger and illustrating the mode of operation of these parts.' F igpl is. a detail perspective view of thedetent'detached.` i v Mounted l.upon a suitable stand l is a tabl carrying a head 3' provided with a bearing 4c`infwhichis piv-otally mount-ed at 5 a lever 6. y"lrhis lever is connectedvby a link with a shaft l2 carryinga 'drive pnl-ley 13, so thatupon rotation ofthe-'shaft 12, in the .directionfof the arrow, l, the lever l6 willige oscillated and the .p unger -8 thereby rreci-procated.' l n Slidalu'lyinounted upon the4 face leef' the hearingblockgis a pairof jaws'l f orm ing between them a fastener part receiving socket 116 at theirlower endsfTh-'ese'jaws -areadapted to "-be moved downwardly by4 cooperation ofthe "17 of the plunger 8 "with a fastener partl held in VAthe socket formed by the aws ,"andlare moved upwardly 'by incansof ',tingerslS arranged for' en-v gagpeinent with a 4pin 19 carried by levert. Thesejaws are siinilar-to',^7ancl"operate in substantially :the sanne mannery as, 'those shown yand described in theStan-le'y patent -above rmentioii'etl." 4Fastener parts arefet to the socletl of the jawsl lfrom a hopper 20 by means of chute 2l, and any 'appropriate cat-.off mechanism' (not shown) may provided in 4 combination therewith for controllingthis feed so that the fasteiier parts'will'be fed one at'atiine.

.Fixeduponthe'table 2 isha bed 22 which vextends forwardy to'thelanvil 23, and-- upon 'this bed is'arranged apair'of guides 24, 24J

parallel ,to each other and forming 'between them a'racewav 25 `extendine'- into?V roiinnit f ,tothe ai'ivilas.

Fastener parts `rare fed from a hopper 26 Ythrough' a' chute 27"t0 the' raeenWay'-V 25 'farmed' bi 'the guides 24,4., 24% and frei the purposeof preventing the entrance vinto `the .ijacewayfroin' the ehuteoffinore than one "tat ,aftianfe pnovidefa det-ent 28 'ated' arcane toltl'ieggiiidegQ/i e 22 and provided with-"a fin' 'l efnormally partially obstructing the raceway 25. This det-ent is normally held with its finger in rac-eway obstructing position by means of a. spring or other resilient member 81, fixed at one end to the bed 22 and at its other end engaging a pin 31 carried by the detent. By this arrangement it will be seen that as fastener parts descend the chute 2? they will slide into the raceway and will be stopped therein in the position indicated at a, Fig. 2, by the finger and will thereby stop the fastener parts behind them in the chute.

Cooperatively arranged in the raceway is a push finger 32 provided with wings 33, 33 which underlie the overhanging port-ions of the guides 24, 24, respectively, and which prevent tilting .or any other movement of the push fingerfthan reciprocation longitudinally of the raceway.4 r1`his push finger is actuated through a link 34 connected with a lever 35 pivoted at 36 to a bearing bracket 237, or other part of the frame of the inachine, and carrying at its lower end a roller 38 riding upon the surface of a cam 239 mounted upon the shaft 12 and rotatable therewith. As will be seen, particularly by reference to Fig. 1, this cam 39 imparts movement to the push finger to withdraw it from the anvil, and its feeding` movement,

whereby it moves a fastener part from the position indicated at a, Fig. 2, to a position over the anvil indicated by o, is imparted to it by a spring 40 or other appropriate resilient means. Fastener advancing` movement of the lever 35 is limited by means of an adjust-able stop screw 40.

It will bc seen, particularly by reference to Fig. 2, that as the push finger 32 moves under the influence of the spring 40, it will contact wit-h a fastening part lying` in the position indicated by a and move this fastener part through the raceway and onto the anvil 23, whereon the fastener part is held in appropriate setting position by means of cl eek pieces 41 pressed normally againstV the inclined sides of the anvil block 42 by means of springs 43. This anvil block and its cheek pieces and their arrangement and inode of operation are substantially the saine as the corresponding parts shown, described and claimed in 'the Stanley patent above mentioned.

As will be seen, particularly by reference to Figs. 3 and 4, the detent 2S is slabbed off or beveled as at 44 for the purpose of preventing interference with the chute 27, and its movement to raceway obstructing position under the infiuence of tlie spring- 31 is limited by means of a shoulder 45. l

The operation of the devicevwould seem to be apparent from the foregoing description, but in the interest of clearness such operation may bestated as follows :-Start ing with.` the parts in the position indicated,

in Figs. 1 and 2, it is liist necessary, iu order to start the operation of the machine, to vvadvance a fastener part into position upon the anvil 23 and to do this the machine is operated through one complete cycle without introducing any article or material to which it is desired to attach the fasteners. Upon operation of the machine through this complete cycle, it will be seen that, as the shaft 12 rotates, it will move the plunger down, and during this downward stroke of the plunger the roller 38 of lever 35 will ride upon the concentric portion m of the cam 39, but when the downward stroke of the plunger is completedv and -the plunger commences to rise again, the eccentric pertion g/ of the camy 39 will engage with the roller 38, and, und-er the influence of the spring 40, the push finger 32 will start in its n'iovement toward the anvil 23. Continued rotation of the shaft 12 will bring the lowest portion e of the cam into contact with the roller 3S, and at this time the push finger will have completed its fastener positioning movement and lever 35 will have engaged stop 4.0. During this fastener positioning mov ment of the push finger the following operations will occur The end of the push finger will first engage with the fastener part while it is in the position indicated at a, and by exerting pressure upon the fastener part will cause the detent, by means of pressure exerted upon the raceway obstructing end of the finger 30, to turn upon its pivot and allow the fastener part to pass it, as illustrated in Fig. 3. After passing t-he finger 30, the fastener part will be moved freely through the raceway until it comes into contact with the cheek pieces 41, and as it continues to advance, it will separate these cheeh pieces sufficiently to allow it to pass between them while at the same time being fi-ictionally engaged by them, and at the limit of the stroke of the push finger will come to rest directly over the anvil and in line with the plunger 8, and will be held by the cheek pieces in this position by their frictional engagement with it during the withdrawal of the push finger. As will bc seen, particularly by reference to Fig. El, the push finger 32 after it has moved the fastener part past the end of the finger 30 will obstruct the discharge end of the chute 27 and will prevent escape ofthe fastener parts from the chute.

As ypreviously stated, any usual cut-olf (not shown) may be used in connection with tho chute 21 for controlling delivery of the fastener parts fed thereby that they are fed one at a time to the soci-:et 145 formed by the jaws 15, and it will be understood that, as is usual in this type of machine, comple- `mental fastener parts are fed to the anvil 23 and the'jaws 15 in such timed relation to the Cil reciprocation of the plunger' that upon the descent of the plunger there will be such complemental fastener parts in position for setting. v

Complemental faste-ner parts having been fed to the anvil and the socket of the jaws respectively, the machine is ready to attachl the fastener, and if, now, the material or article to which the fastener is to be applied is properly positioned over the anvil and the.

machine again operated through a. cycle of movements the complemental fastener parts will be united and the fastener attached to or set upon the material or article, and, during this setting operation, the mechanisms will operate, as previously described, to feed additional con'iplemental fastener parts to the anvil and jaws upon completion of the setting operation, The operation of the machine may, thereafter, be repeated as desired.

It will thus be seen that I provide means wholly automatic in their operation and requiring no mechanical connection with other moving parts of the machine, for controlling feed of fastener parts from the chute to the raceway, thereby affording` a simple and inexpensive arrangement which is perfectly satisfactory and effective in performing the functions required of it and which, moreover, is not apt to get out of order.

It will also be seen that by means of the provision of the cam actuated leverage for limparting the desired .movements to the push finger, I am emabled, by appropriate setting of the cam upon its shaft, to exactly time the movements of the push finger in accordance with the functions required of it.

Therefore, it will be seen that by these improvements I provide a machine lof few parts and simple operation without sacriticing anything of efficiency.

Various changes may be made in the details of construction and the arrangement of parts without departing from the spirit of the invention and the scope of the following claims.

IVliat I claim is 1. In a fastener setting machine, a setting anvil, guides forming a raceway communieating with said anvil, a chute communicating with and adapted to supply fastener parts to said raceway, a detent pivoted adjacent tothe discharge end of said chute and having a finger normally obstructingsaidV lto supply fastener parts thereto, a detent pivoted adjacent to the discharge end of vsaid chute and having a finger normally obstructing said raceway and underlying one of said guides and adapted to maintain fastener parts in predetermined position in said raceway by engagement with their heads, a push finger arranged in said raceway and adapted to engage the heads and Shanks of the fastener parts and provided with wings underlying said guides whereby it is capable only of' sliding movement with respect to said guides, and means for actuating said push finger whereby by its sliding movement in said'raceway the fastener parts positioned by 'said detent will be moved past the obstruction formed by same and advanced to i said anvil, for the purpose specified.

In testimony whereof I have hereunto set my hand this 16th` day of April A. D. 1924.

FRANK E. VARNER. 

